Yes you can do that.
And to do so first open your settings.py file and search for the TEMPLATES
list.After that add a value for the DIRS
key as :
os.path.join(BASE_DIR, 'templates/')
So that your whole TEMPLATES
list should look like this :
TEMPLATES = [
{
'BACKEND': 'django.template.backends.django.DjangoTemplates',
'DIRS': [os.path.join(BASE_DIR, 'templates/')],
'APP_DIRS': True,
'OPTIONS': {
'context_processors': [
'django.template.context_processors.debug',
'django.template.context_processors.request',
'django.contrib.auth.context_processors.auth',
'django.contrib.messages.context_processors.messages',
],
},
},
]
After that in your main directory where all of the apps folder are kept create a folder by name templates
(if not created ) and under that create another folder by name admin
.So templates > admin.
Now under the admin folder create a html file by name : base.html
Now in the base.html
file add the following code :
{% load i18n static %}<!DOCTYPE html>
{% get_current_language as LANGUAGE_CODE %}{% get_current_language_bidi as LANGUAGE_BIDI %}
<html lang="{{ LANGUAGE_CODE|default:"en-us" }}" {% if LANGUAGE_BIDI %}dir="rtl"{% endif %}>
<head>
<title>{% block title %}{% endblock %}</title>
<link rel="stylesheet" type="text/css" href="{% block stylesheet %}{% static "admin/css/base.css" %}{% endblock %}">
{% block extrastyle %}
<link rel="stylesheet" type="text/css" href="{% static 'MyCSS.css' %}" />
{% endblock %}
{% if LANGUAGE_BIDI %}
<link rel="stylesheet" type="text/css" href="{% block stylesheet_rtl %}{% static "admin/css/rtl.css" %}{% endblock %}">{% endif %}
{% block extrahead %}{% endblock %}
{% block responsive %}
<meta name="viewport" content="user-scalable=no, width=device-width, initial-scale=1.0, maximum-scale=1.0">
<link rel="stylesheet" type="text/css" href="{% static "admin/css/responsive.css" %}">
{% if LANGUAGE_BIDI %}<link rel="stylesheet" type="text/css" href="{% static "admin/css/responsive_rtl.css" %}">{% endif %}
{% endblock %}
{% block blockbots %}<meta name="robots" content="NONE,NOARCHIVE">{% endblock %}
</head>
{% load i18n %}
<body class="{% if is_popup %}popup {% endif %}{% block bodyclass %}{% endblock %}"
data-admin-utc-offset="{% now "Z" %}">
<!-- Container -->
<div id="container">
{% if not is_popup %}
<!-- Header -->
<div id="header">
<div id="branding">
{% block branding %}{% endblock %}
</div>
{% block usertools %}
{% if has_permission %}
<div id="user-tools">
{% block welcome-msg %}
{% trans 'Welcome,' %}
<strong>{% firstof user.get_short_name user.get_username %}</strong>.
{% endblock %}
{% block userlinks %}
{% if site_url %}
<a href="{{ site_url }}">{% trans 'View site' %}</a> /
{% endif %}
{% if user.is_active and user.is_staff %}
{% url 'django-admindocs-docroot' as docsroot %}
{% if docsroot %}
<a href="{{ docsroot }}">{% trans 'Documentation' %}</a> /
{% endif %}
{% endif %}
{% if user.has_usable_password %}
<a href="{% url 'admin:password_change' %}">{% trans 'Change password' %}</a> /
{% endif %}
<a href="{% url 'admin:logout' %}">{% trans 'Log out' %}</a>
{% endblock %}
</div>
{% endif %}
{% endblock %}
{% block nav-global %}{% endblock %}
</div>
<!-- END Header -->
{% block breadcrumbs %}
<div class="breadcrumbs">
<a href="{% url 'admin:index' %}">{% trans 'Home' %}</a>
{% if title %} › {{ title }}{% endif %}
</div>
{% endblock %}
{% endif %}
{% block messages %}
{% if messages %}
<ul class="messagelist">{% for message in messages %}
<li{% if message.tags %} class="{{ message.tags }}"{% endif %}>{{ message|capfirst }}</li>
{% endfor %}</ul>
{% endif %}
{% endblock messages %}
<!-- Content -->
<div id="content" class="{% block coltype %}colM{% endblock %}">
{% block pretitle %}{% endblock %}
{% block content_title %}{% if title %}<h1>{{ title }}</h1>{% endif %}{% endblock %}
{% block content %}
{% block object-tools %}{% endblock %}
{{ content }}
{% endblock %}
{% block sidebar %}{% endblock %}
<br class="clear">
</div>
<!-- END Content -->
{% block footer %}<div id="footer"></div>{% endblock %}
</div>
<!-- END Container -->
</body>
</html>
After that go to the static folder and create a file by name : MyCSS.css
Now in MyCSS.css
file you can add any css properties as you wish for any element.
If in case you dont know which CSS selector to use then you can press ctrl+shift+c (on windows) and hover over the element you want to find css selector for like this :

That's all you have to do.
Note: If you want to change the css file name then dont forget to change the css file name in the {% block extrastyle %}
block in the base.html
file.